    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>CSS3时钟案例</title>
        <style>
            * {
                padding: 0;
                margin: 0;
            }
            .box{
                height: 200px;
                width: 200px;
                border: 6px solid #ccc;
                margin: 100px auto;
                border-radius: 50%;
                position: relative;
                /*padding: 2px;*/
            }
            .pointer1{
                height: 202px;
                width: 6px;
                background-color: #6f05e2;
                position: absolute;
                left: 98px;
                top: 0;
                margin-top: -2px;
                margin-bottom: -2px;
            }
            .pointer2{
                height: 202px;
                width: 6px;
                background-color: #6f05e2;
                position: absolute;
                left: 98px;
                top: 0;
                transform: rotate(30deg);
                margin-top: -2px;
                margin-bottom: -2px;
            }
            .pointer3{
                height: 202px;
                width: 6px;
                background-color: #6f05e2;
                position: absolute;
                left: 98px;
                top: 0;
                transform: rotate(60deg);
                margin-top: -2px;
                margin-bottom: -2px;
            }
            .pointer4{
                height: 202px;
                width: 6px;
                background-color: #6f05e2;
                position: absolute;
                left: 98px;
                top: 0;
                transform: rotate(90deg);
                margin-top: -2px;
                margin-bottom: -2px;
            }
            .pointer5{
                height: 202px;
                width: 6px;
                background-color: #6f05e2;
                position: absolute;
                left: 98px;
                top: 0;
                transform: rotate(120deg);
                margin-top: -2px;
                margin-bottom: -2px;
            }
            .pointer6{
                height: 202px;
                width: 6px;
                background-color: #6f05e2;
                position: absolute;
                left: 98px;
                top: 0;
                transform: rotate(150deg);
                margin-top: -2px;
                margin-bottom: -2px;
            }
            .innerMask{
                width: 188px;
                height: 188px;
                background-color: #ff91bd;
                position: absolute;
                border-radius: 50%;
                left: 6px;
                top:6px;
                background-color: #FFFFFF;
                /*display: none;*/
            }
            .hour{
                width: 10px;
                height: 60px;
                background-color: darkred;
                position: absolute;
                left: 48%;
                margin-top: 40px;
                transform-origin:center bottom ;
                animation: run 43200s infinite steps(43200);
            }
            .minu{
                width: 8px;
                height: 70px;
                background-color: #f5ff21;
                position: absolute;
                left: 49%;
                margin-top: 30px;
                transform-origin:center bottom ;
                animation: run 3600s infinite steps(3600);
            }
            .secon{
                width: 4px;
                height: 80px;
                background-color: #e245dc;
                position: absolute;
                left: 50%;
                margin-top: 20px;
                transform-origin:center bottom ;
                animation: run 60s infinite steps(60);
            }
            .dot{
                height: 15px;
                width: 15px;
                border-radius: 50%;
                background-color: #111111;
                position: absolute;
                left: 94px;
                top: 93px;
            }
            @keyframes run {
                0%{
                    transform: rotate(0deg) ;
                }
                100%{
                    transform: rotate(360deg);
                }
            }
        </style>
    </head>
    <body>
        <div class="box">
            <div class="pointer1"></div>
            <div class="pointer2"></div>
            <div class="pointer3"></div>
            <div class="pointer4"></div>
            <div class="pointer5"></div>
            <div class="pointer6"></div>
            <div class="innerMask" ></div>
            <div class="hour"></div>
            <div class="minu"></div>
            <div class="secon"></div>
            <div class="dot"></div>
            <div></div>
        </div>
    </body>
    </html>